var imageFiles_i3_4 = new Array();
imageFiles_i3_4['0'] = new Array ('_images/i3_Submersible_Well_Pumps.gif', '_images/i3_Submersible_Well_PumpsMouseover.gif');
imageFiles_i3_4['1'] = new Array ('_images/i3_Shallow_Well_Jet_Pumps.gif', '_images/i3_Shallow_Well_Jet_PumpsMouseover.gif');
imageFiles_i3_4['2'] = new Array ('_images/i3_Constant_Pressure_Systems.gif', '_images/i3_Constant_Pressure_SystemsMouseover.gif');
imageFiles_i3_4['3'] = new Array ('_images/i3_Pressure_Tanks___Controls.gif', '_images/i3_Pressure_Tanks___ControlsMouseover.gif');
imageFiles_i3_4['4'] = new Array ('_images/i3_Wastewater___Sewage_Pumps.gif', '_images/i3_Wastewater___Sewage_PumpsMouseover.gif');
imageFiles_i3_4['5'] = new Array ('_images/i3_Parts___Accessories.gif', '_images/i3_Parts___AccessoriesMouseover.gif');
imageFiles_i3_4['6'] = new Array ('_images/i3_Complete_Pump_Packages.gif', '_images/i3_Complete_Pump_PackagesMouseover.gif');

function image_on_i3_4 (position) {
   var doc = eval("document.imagei3_4" + position);
   doc.src = imageFiles_i3_4[position][1];
}

function image_off_i3_4 (position) {
   var doc = eval("document.imagei3_4" + position);
   doc.src = imageFiles_i3_4[position][0];
}